linux - Ansible将两个不同的文件变量调用到单个任务中循环遍历多个文件

Question

fil1的内容

# cat file1
fostrain01.example.com
fostrain02.example.com
fostrain03.example.com

file2的内容

# cat fil2
ServerIPS 171.20.20.16 171.20.20.17 171.20.20.18 171.20.20.19 171.20.20.20
ServerIPS 171.20.20.21 171.20.20.22 171.20.20.23 171.20.20.24 171.20.20.25 

在下面的剧本中，它替换了两行的内容，一行是主机名 str ，另一行替换了 ip 所以，我已经完成了两个不同的任务 1) 替换字符串in file & 2) Replace ip in file 来调用定义的变量。

剧本:

- name: Replace string in hosts file
  hosts: all
  gather_facts: false
  vars:
    files:
      - /etc/file1
      - /etc/file2
    from_str: "fostrain01.example.com"
      to_str: "dbfoxtrain01.example.com"
     from_ip: "^(.*)171\\.20\\.20\\.18(.*)$"
       to_ip: "\\g<1>172.20.20.18\\g<2>"
  tasks:
    - name: Replace strings in file
      replace:
        path: "{{ item}}"
        regexp: "{{ from_str }}"
        replace: "{{ to_str }}"
        backup: yes
      loop: "{{ files }}"

    - name: Replace ip in file
      replace:
        path: "{{ item}}"
        regexp: "{{ from_ip }}"
        replace: "{{ to_ip }}"
        backup: yes
      loop: "{{ files }}"

我们可以按如下方式编写任务，而我们并没有真正写入两个不同的任务，我试过但不知道如何使用以下方法循环遍历 "{{ files }}。

  tasks:
    - name: Replace elements in file
      replace:
        path: "{{ item.path }}"
        regexp: "{{ item.From }}"
        replace: "{{ item.To }}"
        backup: yes
      loop:
        # Replace the desired string
        - { path: "{{ item }}", From: "{{ from_str }}", To: "{{ to_str }}" }
        # Replace the desired ip
        - { path: "{{ item}}", From: "{{ from_ip }}", To: "{{ to_ip}}" }

什么是期望的改变:

任务 1) 替换文件中的字符串 & 任务 2) 替换文件中的 ip 合并为一个。

预期结果:

# cat file1
dbfoxtrain01.example.com  <-- Changed
fostrain02.example.com
fostrain03.example.com

# cat fil2
ServerIPS 171.20.20.16 171.20.20.17 172.20.20.18 171.20.20.19 171.20.20.20  <-- changed here ^172
ServerIPS 171.20.20.21 171.20.20.22 171.20.20.23 171.20.20.24 171.20.20.25 

Answer 1

下面的任务完成了工作

    - replace:
        path: "{{ item.path }}"
        regexp: "{{ item.from }}"
        replace: "{{ item.to }}"
      loop:
        - path: file1
          from: 'fostrain01\.example\.com'
          to: 'dbfoxtrain01.example.com'
        - path: file2
          from: '171\.20\.20\.18'
          to: '172.20.20.18'

---

例子

shell> tree .
.
├── file1
├── file1.orig
├── file2
├── file2.orig
└── test.yml

0 directories, 5 files

shell> cat file1
fostrain01.example.com
fostrain02.example.com
fostrain03.example.com

shell> cat file2
ServerIPS 171.20.20.16 171.20.20.17 171.20.20.18 171.20.20.19 171.20.20.20
ServerIPS 171.20.20.21 171.20.20.22 171.20.20.23 171.20.20.24 171.20.20.25

shell> cat test.yml 
- hosts: localhost
  gather_facts: false
  tasks:
    - replace:
        path: "{{ item.path }}"
        regexp: "{{ item.from }}"
        replace: "{{ item.to }}"
      loop:
        - path: file1
          from: 'fostrain01\.example\.com'
          to: 'dbfoxtrain01.example.com'
        - path: file2
          from: '171\.20\.20\.18'
          to: '172.20.20.18'

shell> ansible-playbook test.yml 

PLAY [localhost] ************************************************

TASK [replace] **************************************************
changed: [localhost] => (item={'path': 'file1', 'from': 'fostrain01\\.example\\.com', 'to': 'dbfoxtrain01.example.com'})
changed: [localhost] => (item={'path': 'file2', 'from': '171\\.20\\.20\\.18', 'to': '172.20.20.18'})

PLAY RECAP ******************************************************
localhost: ok=1 changed=1 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0   

shell> cat file1
dbfoxtrain01.example.com
fostrain02.example.com
fostrain03.example.com

shell> cat file2
ServerIPS 171.20.20.16 171.20.20.17 172.20.20.18 171.20.20.19 171.20.20.20
ServerIPS 171.20.20.21 171.20.20.22 171.20.20.23 171.20.20.24 171.20.20.25